I think that with the current trend towards distance/online learning communities, Skype really has a lot of potential in classrooms. I know that I would love to collaborate with other schools from around the county, country, and world. One application that might be good for using Skype to get teachers' feet wet would be simply using it to collaborate with another classroom in the building. For example, my husband teaches vocational agriculture and has much more knowledge about some topics than I do (say, effects of fertilizer types on plant growth, water runoff, etc)...my science class could have a Skype session with his classes when he is covering this topic to enhance my lessons on ecology, biology, etc...his classroom is way downstairs after all! Silliness aside, it would be an excellent, non-intrusive way for teachers to collaborate and build upon their own expertise